Slicing-machine



J. c. wooomenm.

SLICING MACHINE.

APPLICATION FILED JULY 18, I918.

, Patented Feb. 10,1920.

3 S EETS-SHEET I- J. C. WOODINGTON.

SLICING MACHINE.

ION FILED Y1 18- 1,330,292. Patented Feb. 10,1920.

3 SHEETS-SHEET 2- i :Mig 1 l 3 mm is, a. \R R M Q V\% 2 i 1 I m s .m .Li. d n uuwjwv v v UNITED STATES PATENT OFFIO JOHN C. WOODINGTON, 0FLAPORTE, INDIANA, ASSIGNOR TO UZ S. SLICING MACHINE COMPANY, OF LAPORTE,INDIANA, A CORPORATION OF INDIANA.

summer-MACHINE. I

Specification of Letters Patent.

Patented Feb. 10, 1920.

Application filed July 18, 1918. Serial No. 245,488.

To all whom it may concern:

Be it known that I, JOHN C. WOODINGTON, a subject of the King ofEngland, who has declared his intention of becoming a citizen of theUnited States, residing at Laporte, in the county of Laporte and Stateof Indiana, have invented certain new and useful Improvements inSlicing-Machines, of which the following is a specification. I

This invention has for its object the provision of a device of the classnamed which shall be of improved construction and operation. f Theinvention is exemplified in the com bination and arrangement of partsshown in the accompanying drawings and de- 4 or under table. The meatplate is scribed in the ollowing specification, and it is moreparticularly pointed out in the appended claims. I

In the drawings Figure l is a top plan view of the work carriage forslicing machines embodying one form of the present invention.

Fig. 2 is a vertlcal section on line 22 of Fig. 1.

Fig. 3 is a vertical section on line 3-3 of Fig. 1.

Fig. 4 is a vertical section online 4'4 of Fig. 1.

Fig. 5 is a detail of a friction plate forming a part of the invention.

Fig. 6 is a vertical section on line 66 of Fig. 1; and

Fig. 7 is a fragmentary horizontal on line 77 of Fig. 2.

In slicing machines of standard make it is usual to providereciprocating work tables which carry themeat,.or other material to besliced past a rotary slicing blade, the material being clamped to aslid-in meat plate supported upon the reciprocating carriage fed forwardly across the under table a short distance after each reciprocationofthe table in order to move the material upon the plate a sufficientamount to present the thickness of a new slice to the knife during thesucceedmanner well own in the art. ,The table slideway 14.

'- wardly projecting section The table 12 is' an upwardly projecting rib16 which bears aga nst a guide 17 on the lower surface of the meat plate15 and holds the plate from moving laterally on the slideway 14. Theguides 16 and 17 have their contacting surfaces slightly inclined ordovetailed to resist upward movement of the meat plate away from theunder table. I

At the side of the meat plate, opposite the guide's16 and 17, a frictionplate 18 is mounted having an overhanging flange 19 which projects1nto.,a groove 20 formed in,

the side of a guide 21 forsupporting the side of the meat plate whichrests upon the ots 23 journaled in bearing blocks 24, 25 and 26 rigidlysecured to the under table 12. The end lugs 22 are provided withdownportions 27 which carry horizontally extending bars ject beneath themeat plate, as shown in Fig. 3, and supported at their inner ends is aplate in the position shown in broken lines in Figs. 1 and 6. The weight29 is recessed, as shown at 30 and 31, in order to clear the ways 10 and11. It will be obvious that the weight 29 will tendto press the frlctionplate 18 against the guide 21 and thus produce a braking action uponthe'meat plate 15, offering a resistance to the sliding move- Thefriction plate 18 is secured to lugs 22 which are supported by piv- 28which pro-' weight 29 which extends beneath the meat ment of the plateupon the table for a, pur-.

pose which will be explained. .When it is desired to remove the meatplate from the under table, the plate may be pressed slightly to theright, as viewed in Fig. 2, the

friction plate 18 yielding sufliciently under this pressure to permitthe inclined surfaces of the guides 16 and 17 to clear each other whenthe edge of the plate at the left of Fig.

2 is raised upwardly. After the guides 16 and 17 are clear of eachother, the plate may then be drawn slightly to the left to. free theopposite edge of the plate from the'frictloni member 18, and the platemay then be lifted bodily fromits support.

The meat plate is fedacrossthe under table by means of a screw 32 whichis ournaled in brackets 25 and 26'and whlch is half nut 36 in mesh withthe screw. The block 34 is provided with a downwardly projecting arm 38which bears against the.

end of a rod 39 slidably carried beneath the meat plate 15 and providedwith a spring 40 which normally holds the end of the rod 39 in aretracted position to permit engagement between the half nut 36 andscrew 32. The end of the rod, opposite the half nut, is provided'with acam block 41 into which the end of the rod is threaded so that the blockmay adjusted slightly longitudinally of the rod. The cam block 41, as

shown more clearly in Fig. 7, is notched to provide inclined bearingsurfaces 42 into which a V-shaped projection 43 on a hand i lever 44 isshaped to fit. The lever 44 is connected by a pivot screw 45 to abracket "46 secured to the edge of the meat plate 15.

When it is desired to shift the meat plate upon the under tableindependently of the feed screw 32, the operator grasps the hand lever44 and simply pulls the table in the direction in which hewishes it tobe moved. The first effect of this operation is to swing the lever 44about its pivot so that the cam surface 42 forces the rod 39' to theright, as viewed in Fig. 2, and thuslifts the half nut 36 clear of thefeed screw. The lever 44 will then stand in one or the other of thebroken line positionsshown in Fig. 1, and the plate will be free fromthe feed screw so that further movement of the lever will draw the tablealong its guideways into any position desired by the operator. Thus by asingle operation the plate is released from the feed screw and adjustedupon its guides.

The friction ,plate 18 in addition-to forming a guide at one side of themeat plate 15, is for the purpose of producing a braking I action uponthe meat plate to overcome backlash in the feed screw. After the feedscrew becomes slightly worn, or if the connection between the half nutand the meat plate permits of a little play, the meat plate 15 will befree to move slightly upon its guideways independently of the rotationof the screw 32. During a feeding operation the plate, of course, willbe as far back along the guideways as the screw will permit, because itis being fed forwardly by the screw. When. the knife begins to sever aslice, however, there is a tendency on thepart of the knife to draw themeat forwardly toward the knife because of the particular shape giventhe knife edge. If the table slides easily upon its guides, this tensionproduced by the operation of the knife will move the table forwardly asfar as any backlash of the screw will permit, and thus slices of uneventhickness will be produced. In order to prevent this difiiculty thefriction plate 18 is provided which offers suflicient resistance to thesliding movement of the meat plate to overcome any tension produced beensecured for maintaining the pressure necessary to overcome the forwardtension produced by the knife in cutting slices, this pressure willremain constant and never be changed by wear or use.

I claim v 1. In a slicing machine, a support, a holder for material tobe sliced movably mounted on said support, mechanism for feeding saldholder on said support, and a friction device for opposing the movementof said holder relative to said sup-port to prevent lost motion betweensaid holder and its feed; ing mechanism.

2. In a slicing machine, a support, a work holder movably mounted onsaid support, mechanism for feeding said work holderrelative to saidsupport, and a weight-actuated friction device for opposing the movementof, said holder relative to said support to maintain a close operatingrelation between said holder and its feeding mechanism.

3. In a slicing machine, a support, a work holder movably mounted uponsald support, a screw for feeding said holder relat ve to said support,and a weight-actuated frlctlon device for engaging said holder toovercome the effect of backlash in said screw.

4. In a slicing machine, a support, a work holder slidably mounted uponsaid support, a screw for feeding said work holder along said support, atoothed member connected with said work holder and removably enagingsaid screw, and a weight-actuated friction device engaging said workholder for resisting the movement of sald holder under the influence ofsaid screw to overcome the effect of lost motion between said screw andwork holder.

5. In a slicing machine, a support, a work holder slidably mounted uponsaid support, a screw journaled in said support and connected with saidwork holder for feeding said work holder, a lever arm connected with forengaging said work thereof, an upright friction member pivot- 9 ber forcau'slng'sald memberto press aga nst I relative-to said support.

by said lever arm for causing. said friction member to press againstsaidwork holder.

6. In a slicing machine, a support, a: work holder slidably mounted onsaid support, an

inclined guide at one edge of said support, a movable guide at theopposite edge'of said upon said movable'guideto hold said work holderagainst said inclined guide and to produce a braking action between-saidmovable guide and said work holder.

,7. In abslicin-g machine, a support, a work holder mounted to slideupon said support, aninclined guide carried b said support holder at oneedge ally mounted upon said support for'en'gaging the opposite edge ofsaid work holder, a weight connected with said friction memsaid' workholder, and an overhanging projection on said friction member forpreventing upward movement of saidwork holder '8. In a slicing machine,a holderslidably mounted upon said sup rt,

ing the movement of said holder relative to said support, a handle forsliding said work holderon said support against the resistance of saidfriction member, and meansoperated v by said handle for'loreaking theconnection between said screw and wor holder.

9. A slicing machine comprising a sup port, a work holderslidably'mounted on said support, a screw for feedingsaid work holderalong said support, a; half nut forenscrew, a half nut pivota workholder for engaging said screw, a hansupport, a work 65 v upon saidsupport."

gaging the said screw, a handle: connected ated by sai' handle fordisconnecting said half nut from said screw when force is exerted uponsaid handle formoving said work ated device for m'oving said work holderupon said support, and means'operated by said device for releasing. saidwork holder from said feeding mechanism when'said device is operatedto'move said holder in either direction upon said support.

holder in either direction upon said supsupport, and means for exertingpressure i 11. 'Ina slicing machine,aisupport, awor-k holderslidablymounted upon said support, I i

a screw for feeding said holder upon-said support, a weight-actuatedfriction device for resisting the feeding dle pivotallymounte d on saidwork holder, and means connected with'said handle for releasing saidhalf nut from said feed screw movement of said, I y mounted onsaid whensaid handle is moved slightly upon its pivotal connection with said workholder and. for'preventing further movement of; said handle upon itspivot after the release of said half nut so that continued force, ex-

erted upon said handle will slide said holder In testimony whereof Ihave signed my name tothis specification on this' llth day of July, A.D. 1918. 4

, I J. C. WO ODINGTON.

